diff options
Diffstat (limited to 'util-linux/volume_id/romfs.c')
-rw-r--r-- | util-linux/volume_id/romfs.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/util-linux/volume_id/romfs.c b/util-linux/volume_id/romfs.c new file mode 100644 index 000000000..7c4fc0f70 --- /dev/null +++ b/util-linux/volume_id/romfs.c @@ -0,0 +1,54 @@ +/* + * volume_id - reads filesystem label and uuid + * + * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "volume_id_internal.h" + +struct romfs_super { + uint8_t magic[8]; + uint32_t size; + uint32_t checksum; + uint8_t name[0]; +} __attribute__((__packed__)); + +int volume_id_probe_romfs(struct volume_id *id, uint64_t off) +{ + struct romfs_super *rfs; + + dbg("probing at offset 0x%llx", (unsigned long long) off); + + rfs = volume_id_get_buffer(id, off, 0x200); + if (rfs == NULL) + return -1; + + if (memcmp(rfs->magic, "-rom1fs-", 4) == 0) { + size_t len = strlen((char *)rfs->name); + + if (len) { + volume_id_set_label_raw(id, rfs->name, len); + volume_id_set_label_string(id, rfs->name, len); + } + + volume_id_set_usage(id, VOLUME_ID_FILESYSTEM); + id->type = "romfs"; + return 0; + } + + return -1; +} |